<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title></title>
</head>
<body>
<input type="" name="" value="还有一个小时下课" disabled>
<input type="checkbox" name="" class="check" checked>
<select>
	<option class="op1">选项1</option>
	<option class="op2">选项2</option>
</select>
<button>获取</button>

<script type="text/javascript">
	let inp = document.querySelector('input')
	let check = document.querySelector('.check')
	let op1 = document.querySelector('.op1')
	let op2 = document.querySelector('.op2')
	console.log(inp.value)
	//禁用属性
	console.log(inp.disabled) //因为加了disabled 打印出来的是true，如果没加是false
	//选中属性
	console.log(check.checked) //true

	console.log(op1.selected,'选项1')
	console.log(op2.selected,'选项2')
	function get(){
		console.log()
	}
</script>
</body>
</html>